Retrospective Evaluation of Cured-in-Place Pipe - (NEPIS)(EPA ...

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Figure 4-9. Liner Specimens - Bending (Left) and Tensile (Right) (Denver 8-in. Liner) Table 4-6. Marking of Specimens (Denver 8-in. Liner) Location Sample ID From the crown Crown 1; Crown 2; Crown 3 From the spring line SL 1; SL 2; SL 3 From the invert Invert 1; Invert 2; Invert 3 Figure 4-10. Flexural Testing in Accordance with ASTM D790 Figure 4-11. Tensile Testing Specimens Before (Left) and After the Test (Right)
Table 4-7. Results from Flexural Testing (Denver 8-in. Liner) Location Peak load Peak bending stress Peak shear stress Flexural modulus on pipe (lb) (psi) (psi) (psi) Crown 1 36.63 6,316 251 331,269 Crown 2 39.24 6,329 254 310,634 Crown 3 36.95 6,718 271 347,401 Average - 6,454±228 259±11 329,768±18,429 SL 1 29.00 6,170 243 322,611 SL 2 33.62 7,309 275 359,245 SL 3 31.29 6,657 264 338,276 Average - 6,712±571 260±16 340,044±18,381 Invert 1 33.29 7,083 283 319,351 Invert 2 32.06 6,412 256 325,894 Invert 3 36.73 7,815 308 363,382 Average - 7,103±702 282±26 336,209±23,759 Overall Average - 6,756±546 267±20 335,340±18,186 Table 4-8. Results from Tensile Testing (Denver 8-in. Liner) Area Peak Load Peak Stress Mod. E Location on Pipe (in. 2 ) (lb) (psi) (psi) Crown 1 0.1327 430.47 3,244 405,111 Crown 2 0.1344 417.85 3,109 479,861 Crown 3 0.1351 376.52 2,787 350,396 Average - 3,047±235 411,789±64,990 SL 1 0.1607 447.55 2,785 401,369 SL 2 0.1437 459.14 3,195 400,884 SL 3 0.1462 437.34 2,991 400,954 Average - 2,990±205 401,069±262 Invert 1 0.1325 407.38 3,075 389,787 Invert 2 0.1452 465.17 3,204 473,405 Invert 3 0.1493 428.88 2,873 402,825 Average - - 3,051±167 422,006±44,988 Overall average - - 3,029±179 411,621±40,548 33
Page 1 and 2: EPA/600/R-12/004 | January 2012 | w
Page 3 and 4: DISCLAIMER The work reported in thi
Page 5 and 6: ACKNOWLEDGMENTS This report has bee
Page 7 and 8: samples had a flexural modulus valu
Page 9 and 10: CONTENTS DISCLAIMER ...............
Page 11 and 12: 4.3.10.2 Upstream Sample ..........
Page 13 and 14: 9.2.2 Recommendations for Developme
Page 15 and 16: Figure 5-27. Raman Spectra for the
Page 17 and 18: ABBREVIATIONS AND ACRONYMS AMP Asse
Page 19 and 20: 1.0: INTRODUCTION This report forms
Page 21 and 22: 1.2 Organization of the Report Foll
Page 23 and 24: Some sections of a sewer system may
Page 25 and 26: • The depth of the pipe below the
Page 27 and 28: Figure 2-3 highlights the main diff
Page 29 and 30: The most commonly used resins are i
Page 31 and 32: the glass fiber. The tube, which is
Page 33 and 34: 3.0: DEVELOPMENT OF CIPP EVALUATION
Page 35 and 36: • The municipality would be willi
Page 37 and 38: • Measurements and/or physical sa
Page 39 and 40: Table 3-3. Laboratory Evaluation an
Page 41 and 42: 4.1 Introduction 4.0: CITY OF DENVE
Page 43 and 44: Figure 4-1. Images of the Recovered
Page 45 and 46: Sample ID Figure 4-4. Soil Grain Si
Page 47 and 48: Location Table 4-5. Denver 8-in. Li
Page 49: Profile Plot Red - Steel tube Green
Page 53 and 54: 35 Table 4-9. Comparison of Test Da
Page 55 and 56: 4.2.12 Buckling Test. A steel mecha
Page 57 and 58: Figure 4-18. Pressure Gage and Pres
Page 59 and 60: 4.2.13 Shore D Hardness. Durometer
Page 61 and 62: Figure 4-24. Barcol Hardness Readin
Page 63 and 64: increases and the heat of cure decr
Page 65 and 66: In summary, CCTV inspection of thre
Page 67 and 68: Figure 4-28. Thickness for Denver 4
Page 69 and 70: 4.3.6.2 Downstream Sample. Seven sp
Page 71 and 72: Figure 4-34. Flexural Stress-Strain
Page 73 and 74: Table 4-18. Flexural Test Results f
Page 75 and 76: 4.3.8.2 Upstream Sample. Specimens
Page 77 and 78: 4.3.10 Barcol Hardness 4.3.10.1 Dow
Page 79 and 80: 4.3.11.2 Downstream Sample. The Ram
Page 81 and 82: 5.1 Introduction 5.0: CITY OF COLUM
Page 83 and 84: April 16, 2010 The specimen was rec
Page 85 and 86: The resulting gradation curves are
Page 87 and 88: Table 5-4. Soil pH at Designated Lo
Page 89 and 90: Figure 5-8. Average Thickness at Di
Page 91 and 92: 5.2.12 Flexural Testing. Specimens
Page 93 and 94: Figure 5-14. Flexural Stress-Strain
Page 95 and 96: Figure 5-16. Tensile Stress-Strain
Page 97 and 98: 5.2.15 Buckling Test. A mechanical
Page 99 and 100: Figure 5-24. Localized Leak on the
Page 101 and 102:
Figure 5-26. Barcol Hardness Readin
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5.3.3 Visual Inspection of Liner. I
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Figure 5-32. Ultrasonic Testing for
Page 107 and 108:
Table 5-13. Geometric Data for Flex
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Figure 5-38. Shore D Hardness of Co
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6.1 Introduction 6.0: REVIEW AND CO
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Overall, the liners appear to be ho
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age difference between the liners i
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Looking for correlations to the low
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A significantly lower range of Shor
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7.0: RECOMMENDED TEST PROTOCOL FOR
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combining this broadly available in
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Table 7-3. Overall Structure for a
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Table 8-2. CIPP and Other Rehabilit
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Table 8-5. Rehabilitation Specifica
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113 Table 8-9. Process Verification
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Göttingen Stadtentwässerung: Göt
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experience and quality, and do not
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km of pipe and 50-year-old pipes ar
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methods are detailed in the Guide t
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The business of pipeline rehabilita
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• Destructive testing (but will n
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In Denver, in CCTV inspections of n
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9.2 Recommendations for Future Work
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Falter, B. 1996. “Structural Anal
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Lehmann, M.A, J.P. Schroeder and C.
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APPENDIX A LIST OF TEST STANDARDS R
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The following table lists the non-A
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B.1 Introduction This study was con
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Mean thickness values for each cont
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APPENDIX C INTERNATIONAL STUDY INTE
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The original Insituform liner insta
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However, the figures published by O
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exfiltration and infiltration. Any
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STW uses CIPP for virtually all of
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method. Top hat repairs to junction
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All design and construction supervi
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Process verification test samples a
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consultant born out of the corporat
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BW continues to use CIPP, mainly in
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East, but has not yet had marked su
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